/*
 * Copyright 2011-2012 INSA Rennes
 *
 * This file is part of EIImage.
 *
 * EIImage is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * EIImage is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with EIImage.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef FFT_H
#define FFT_H

#include <complex>

int nearestUpPower2(int n);
bool Powerof2( int n, int *m, int *twopm );
void FFT(int dir,int m,double *x,double *y);
bool FFT2D(std::complex<double> **c,int nx,int ny,int dir);

#endif // FFT_H
